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Rotary Kiln Burner Alignment Procedure
The burner alignment procedure in rotary kilns is crucial for efficient and safe operation. In this article, we will outline the key steps for burner pipe centering and alignment, including acceptance limits and operational signs of misalignment.
Key Alignment Steps
- After stoppage, apply LOTO (Lockout/Tagout) and enter the kiln once it has cooled down.
- Measure and mark the kiln and burner diameters.
- Align the burner axially 0.5–0.8 m inside from the kiln outlet, depending on the burner type.
- Center the burner horizontally and vertically.
- Horizontal centering: adjust the adjustment bolts to ensure the burner is centered.
- Vertical centering: adjust the burner pipe support frame height to ensure the burner is centered.
Typical Acceptance Limits
- Horizontal: ±10 mm
- Vertical: ±10 mm
- Burner angle: ≤0.5°
Operational Signs of Misalignment
- Flame hitting refractory
- Uneven coating
- High shell temperature
- Unstable kiln operation
Original source: Rotary Kiln Burner Alignment Procedure | Vishnu Shankar posted on the topic | LinkedIn